Shuttle-changing device for looms



1 May 927 F. ANINGER SHUTTLE CHANGING DEVICE FOR LOOMS Filed Dec. 22. 1923 2 Sheets-Sheet 1 RIVWIP/WFI 1 1927. May 3 v F. ANINGER SHUTTLE CHANGING DEVICE FOR LOOMS F iled Dec 22. 1925 2 Sheets-Sheet 2 Patented May 31, 1927.

FRIEDRICH ANI GER, 0'11 AaK'r mninnnnno'er, czEoHosLovAKIA.

SHUTTLE-CHANGING DE ICE Eon tooivrs.

Application filed December 22, i923, Serial No. 682,263, ana m Germanyoctober 29,1923."

This invention relates to shuttle changing devices for looms, and in particular to fly shuttle interchanging mechanism for power looms operating with a movable front wall. Hitherto it has been customary with all known arrangements of this kind to move the front wall by means of a rigid guide in themanner of agate arrangement or a link motion.- The motion of the front wall is effected by meansof a special power medium, such as a counter-weight or a spring. Such shuttle arrangements, however, did not enter into general use on account of their many defects and shortcomings, the main difficulties encounteredbeing the wide space between the shuttle magazine and the shuttle box, the wide structure necessitated thereby, the low Working speed, the unreliability of the changing gear, and, last, not least, Want of economy involved in its use. All these shortcomings can be traced back to the fact that the interchangeable fly shuttle arrangements proposed hitherto are arranged to run in a rigid guide and that the intercl'lange of shuttles is not positively effected by means of adri-ving shaft-or steering-gear.

. These objections are removed by a device embodying my present invention which com-l prises means whereby:

1. The front wall is swung ou bars; 7

2. The path of the front wall is mined by a pair of elements;

8. The movement of the front wall is directly effected and carried out by means of a driving shaft; r

4. A shifting of the front wall accompanied by the rocking of the same is'eft'ected.

Two embodiments of this invention are given, by way of example, inthe accompanying drawings, wherein:

Fig. 1 represents a side elevation of a portion of a power loom embodying my invention;

Figs. 2, 3, 4 and 5 represent four succeeding positions of the parts.

Fig. 6 represents a modified form'of apparatus embodying my invention in sectional elevation. I I

Fig. 1 show'sthe frame of the loom with the sword 3 swinging back and'fortharound pivot 2. From; the sword 3 the cloth beam 5 isstretched by the wheel 4. Over the breast beam, which is situated above the clothbeam, the shuttle magazine 6 is'providech'in which t by motion deterthe full shuttles are placed. The swords 3 7 here.

carrythe lay 7, which isdivided into a throwoff binder 8 and a Work-box 9. According to the boxes placed into the race board, the shuttle is either caught and thrown-:out or it is flung back across the loom by the picker and the arm 10 in a manner well understood, l and which need not he further described 111 order, to "castoutthe empty shuttle and replace same'by afull 01187.3 motionbar ap pliance'is provided on the lay 7. This consists of a three-armed lever 11,12, 13 and Y v the single-armed lever 15, carrying the movable front wall boX9. V I v The three-armed lever 11, 12,113 turns round a rigid steeringshaft 16, rigidly attached to the lay 7, whilethe single-armed lever 15 swings about the end pivot 17 of the lever 13. The bottom side of the lever 15.

is provided withan inclined plane or wiper 18 arranged to slldeover "a frlct on roller or pulley 19 journaled at the lower end of the lay, the wiper .18 beingconstantlypressed so downwards and against the 'friction'roller or pulleylQ by a spring 20.- Another spring 21 attached-tothe arm 11 of the lever ll, 12

retains the motionbars in the position shown 1 in Fig 1 so that the front wall 14 is con- 5 V tinually pressed against the lay 7, while the work-box is closed. At theother end of the lever 11,- 12 a notch orshoulder 22 is pro- I videdwhich is arranged to beengaged by q a latch or stop arm 23. The latch or stop arm 23, pivoted at the point 24 on frame 1, is kept in elevated position by a spring 25 so that normally it cannot come into contact with thenotch or shoulder 22.

From the latch 23 a belt or cord 26- scured to the same runs over apulley. 27::to

a-t-win-armed lever 28 fulorumed'atpoint 29 on the breast beam. The end or nose30 of lever 28 is acted upon by a trip lever 31, 1 and thereby retained inthe inclined position indicated inFig. 1. I

The deviceoperates as follows:

the armf23 is pulled down. .A s soonas'the lay swings backward (Fig.2) thenotchor shoulder 22 strikes against thelatch23,-the V 14 of the work OrshuttIe- 70 orthe' result being a turning of the three-armed lever 11, 12, 18 and thereby of the steering,

v shaft 16.

- -.magazine and placing it into the 'r'sliuttl'ewall ST of the. work-box .35.

At the same time the shuttle'box 8 is opened in the usual manner by the extension of the lever 13 (Fig. 3), wherebythe empty shuttle is caught. 'By the turning of the three-armed .leventhe pivot 17 of the lever 13 moves towards the breast beam, and as the inclined plane 18 travels over the frictionroller 19,,opens tl1e binder ,8 simultaneously with the putting of the work-box into the race board... Theopeningof the workbox isceffeoted by the swingingout of the front walll l. The path ofthe front ,wall ispdependent upon the. form of the inclined plane or wiper 18 of the lever 15.

' At the ,end of the ,motion the-pulleyor frietion roller 19 springs into positionbehind ,the shoulder of .the wiper or inclined plane .18 and;blo c ksl,the bars. Asthe lay now.rocks in thereverse direction towards the, bl'eastrbea1n,the front wall 14 now locked in position moves underneath the shuttle magazine 6, as indicated in Big. 4.

Asthe lay continues this rocking movement, a vstop 32,;attached to the. frame or otlier fixedrpart, strikesanextension 33 of.

the lever 16,and causes the release of the motion bars, and at the sametnne the re turn of i the roller 19 into contact} with the 1 inclined plane 18,.the'reby causing the front wall: to rise behind the shuttle magazine 6'. Thecspring. 21 attached tolever 11 can now operate freely to turn. the motion bars back into theiroriginal position (Fig. 5), at the szimetime-taking a full shuttle from the boxhf I .In .Fig. ,6 is represented modified arrangement, also embodying my invention.

The shuttle .arrangement also f comprises twoshuttleboxes 34 and 3 5 which are'adapt-- ed to be moved; on. the; lay. 36 transversely to the. race board. The. box 35} is. the throwbox foraeastingi out the empty shuttle. It has a front. and rearwall 37,38. To the lay 36. two guiding, pins are fitted with movable slides,,.40,w.hich are infixed connection with the rearwall of theqbox 34. The sword is attached to the pivotedilevers 41 which are provided with slots 42, (a p.i,n ,43 fixed to slide .40. engaging said slots, as shown. The

front,theldistancebetween the walls 87, 38

isonly. slightly greater than necessary to receiveatheshuttles. 7 I

In order to give fullplay tothe Wall 37 inrespect to its position in front of the new full shuttle at the bottom of the magazine 48, apivoted inclined plane or cam 49; is provided. A spring 50 yieldingly draws the cam 49aupwa-rd ,to clear the pin 53. This 'upwa'rd 'inovement is limitedqby a pin'52' e ding, f m the sw rd; 3 1 m; eng g ment with a slot 51in cam 49. The lever 44 has extending from it a guide pin 53 which moves over the bottom surface of cam 49 asthe lever 44 advances to theposition .foreXchanging the fly shuttles.

the pint?) movingover cam 49 is coinci-,

dently 1 drawn downward andpasses underneath the shuttle magazine,:,where-upon, as

I The lever 44 now swings on the piv0t54, and. by

the-.pin,.5 3 leaves the c a1n;.49, it is'drawn, if

upwardby the spring .45; Whenthe lever.

44 strikes against the stop 46 it takes its p s t on e re-t n fullfiy. shu tle in' magazine 48, as indicated in dotted linesat the'right of'Fi'g. 6. ,As thework-box slides back into itsnormal initial position tointroduce a new fly shuttle ontothe race board, thepin 53 now travels, over thenppersurface of the inclined plane or cam 49, which is ,tljici'eby n oved downwards against the yieldingpressureof springbO, the 'pin 53 being thus returned to its initial position, sow:

that, with the next oscillatiomthej pin will againtravel over; the bottom surface ofthe inclined. plane or camj;49, whereby the forn ier operation is repeated. r -What l clai n' and desire to secure byLettersPatentis: v .1. In a shuttle-changing. mechanism, a lay provided with a shuttle-boxcomprising a movable frontwall, and means for rocking the lay, in combination with means =for;i m-.

parting to said front wall a rocking movement away from and toward theshuttle-b'ox and a simultaneous respectivelydownward.

and upward shifting movement. i I 2. In a shuttle-changing machine, alay provided with a shuttle-box compris ng a rear-jfixed wall on; the lay, and a movable front wall, in combination with steering shaft mounted 1011; the lay, a dependin lever pivoted on the steering shaft, afsecond lever connected to thefirstglever andbearing the saidrfront wall, and means for rocking the first lever on the steering shaft and rocking the second lever on the first leverdownward at the beginning ofthe forward stroke of the first lever and upward at the end of the lee said forward stroke and the beginning of the return stroke of said first lever. n 3. In a shuttle-chang ng mechanism, alay provided withaa shuttle-box comprising a movable front wall, incombination with a steering shaft, a lever pivoted on said steer-z ingshaft and means for rocking said lever on the steering shaft, a second lever pivoted .on the first lever I and having said front wall mounted thereon, an extension on the second lever and a fixed stop in the path of the ex tension and arranged to cause said second,

1 lever to rock upwardly and the front wall to rise on the first lever as it' reaches the end of its stroke.

4. In a shuttle-changing mechanism, a lay and oscillatory swords carrying same, and a shuttle box comprising a movable front Wall thereon, in combination with a rocking lever pivoted on the swords, and a second lever pivoted to one arm of the first lever and carrying the said front wall and means arranged on a fixed part of the mechanism and the second lever, respectively, to cause an oscillation of the second lever on its pivot,

whereby the front wall is caused to rise atthe rearward stroke of the swords and to.

successively pass forward and descend at the beginning of the return stroke '5. In a shuttle-changing mechanism, laycarrying reciprocating swords and 'a shuttle box comprising a movable front wall on the comprising a movable front wall arranged on the lay, in combination with a lever fulcrumed on the sword and yleldingly urged in one direction, an extenslon on said lever and a stop in the path of the extension arranged to cause said lever to rock in the opposite direction, a second lever carrying the front wall and fulcrumed on the-first lever,a cam or wiper on the second lever and a part onthe lay over which the cam 01 wiper is arranged to travel, an extension on the second lever and a contactarrangedon.

a fixed part of the mechanism in the path 'of the extension substantially at the end of the rearward stroke of the-swords.

7. In a sliuttlechanging mechanism, a shuttle magazine, lay-carrying swords arranged to rock toward and past and back from the magazine and a shuttle box on the lay, in combination with a lever fulcrumed onthe swords, a secondlever fulcrumed on. the first lever and carrying the front wall of. the shuttle box, and means for oscillating the second leverwith respect to the firstduring the oscillation of the sword so as to cause the front wall to pass under, upward in front of and forward and past the lower part of the magazine and toward thework box as the swords rock backand forth.

8. In a shuttle-changing mechanism, a"

shuttle magazine, lay-carrying swords arranged to rock back and forth with respect to the magazine, and a shuttle box on the lay, in combination with a lever fulcrumed" on the swords and provided with an ex- 7 tensions a p ar anged inthe path of the 7 O first lever, a cam or wiper on the second lever extension, a'second lever fulcrumedyto the and a part on the lay over which the cam or wiper is arranged to travel, an extension on the fulcrum of the second lever and a stop on a fixed part of the mechanism and arranged in the path of said extension.

In testimony whereof I aflix my signature.

FRIEDRICH ANINGER. 

